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Finding the Fourth Proportional to 519,871.32, 779,881.36 and 160,072.60

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Solution

The fourth proportional to 519,871.32, 779,881.36 and 160,072.60 is: 240,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,871.32 : 779,881.36 = 160,072.60 : x
  2. Step 2: Convert to fraction form
    519,871.32/779,881.36 = 160,072.60/x
  3. Step 3: Cross multiply
    519,871.32x = 779,881.36 × 160,072.60
  4. Step 4: Simplify right side
    519,871.32x = 124,837,636,986.74
  5. Step 5: Solve for x
    x = 124,837,636,986.74/519,871.32
  6. Step 6: Final answer
    x = 240,131.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.